Convert Any Image Format Online — JPG, PNG, WebP, HEIC & More, Free
You've got an image in the wrong format. The platform won't accept it. The client needs it as a PNG. Your website loads faster with WebP. Your iPhone saved everything as HEIC and now nothing opens it. Whatever the format mismatch, you don't need a desktop app, a plugin, or a subscription to fix it.
Transfonic free online image converter handles JPG, PNG, WebP, HEIC, AVIF, SVG, BMP, TIFF, GIF, ICO, and more — all from your browser, all without creating an account.
How to Convert Your Image
The process is the same regardless of which format you're starting from or converting to.
Upload your image by dragging it into the converter or clicking to browse your files. When loaded, choose your target format from output options — JPG, PNG, WebP or any supported one. Click on Convert and download your file. It only takes less than 30 seconds for most images and nothing stays on the server when you're done.
No email address. No account creation. No watermark stamped onto your converted image.
Every Format You're Likely to Need
Different formats exist for different reasons, and knowing which one to use saves you from converting twice.
JPG is the standard for photos and anything going on social media or into email. It keeps file sizes small at the cost of some compression. PNG is the go-to when you need transparency — logos, graphics, UI elements, and anything with a clean background. WebP is what Google recommends for web images: smaller than both JPG and PNG at similar quality, which means faster page load times and better Core Web Vitals scores.
To recap, HEIC is Apple's default format on iPhones — fantastic for storage but horrific for compatibility. Instant sharing on ANY platform is possible once your HEIC photos are converted to JPG. AVIF is a next-gen format with better compression than WebP and is gaining increased support from modern browsers. SVGs, vector Format SVG creates an SVG format that can be scaled to any size without losing sharpness.
An actual conversion test took 11 seconds to convert a 2.4MB JPG to WebP, giving us an output file of 1.6MB — a size-saving of over a third, at no visible quality loss, full screen.
Need more than just format conversion? The image upscaler can increase resolution before you convert, and the image cropper lets you trim dimensions to exact specs before export.
Who This Tool Is Built For
Web developers and designers converting assets for production — switching PNG screenshots to WebP, preparing ICO files for favicons, or exporting SVGs from raster sources. Format compatibility issues slow down builds; this removes that friction entirely.
Photographers and content creators dealing with HEIC files from iPhone shoots that won't open in Windows, won't upload to stock platforms, and won't embed in documents. One conversion fixes all of that.
Social media managers and marketers who constantly hit format rejection errors on platforms that only accept JPG or PNG, or who need to reduce image file sizes for faster upload and better feed performance.
Graphic designers handling client deliverables in multiple formats — the same logo delivered as PNG for web, SVG for print, and ICO for browser use. If you're working with vector graphics, the image vectorizer converts raster images directly to SVG format without redrawing from scratch.
Free, Private and No Account Required
There are no conversion limits, no file caps per day, and no "free tier" that adds a watermark to push you toward a paid plan. Every format, every conversion, completely free.
All uploaded files are protected with 256-bit SSL encryption during transfer and deleted automatically after conversion. Nothing is retained on Transfonic servers. What you upload is processed and gone — no storage, no access, no exceptions.
It works on any device: Windows, Mac, Android, iPhone, tablet. No app to install, no extension to add. Just open the page, upload your image, and convert.